Well this is basically You're Beautiful by James Blunt, except I changed the lyrics.
Your strength is brilliant
Your strength is brilliant, your toughness pure
I saw an Tyranid of that I'm sure
It roared at me on the Warpway
It was with another victim
But I won't lose no sleep on that
'Cause I've got a plan
A Carnifex, A Carnifex
A Carnifex, it's true
I saw your face in a crowded place
And I don't know what to do
'Cause I'll never be with you
Yes, it caught my eye
As I walked on by
It could see from my face that
I was flying high
And I don't think that I'll see it again
But we shared a moment that will last 'till the end
A Carnifex, A Carnifex
A Carnifex, it's true
I saw your face in a crowded place
And I don't know what to do
'Cause I'll never be with you
La la la la la la la la la
A Carnifex, A Carnifex
A Carnifex, it's true
There must be an Tyranid with ichor on it's face
When it thought up that I should be with you
But it's time to face the truth
I will never be with you
Your strength is brilliant
Your strength is brilliant, your toughness pure
I saw an Tyranid of that I'm sure
It roared at me on the Warpway
It was with another victim
But I won't lose no sleep on that
'Cause I've got a plan
A Carnifex, A Carnifex
A Carnifex, it's true
I saw your face in a crowded place
And I don't know what to do
'Cause I'll never be with you
Yes, it caught my eye
As I walked on by
It could see from my face that
I was flying high
And I don't think that I'll see it again
But we shared a moment that will last 'till the end
A Carnifex, A Carnifex
A Carnifex, it's true
I saw your face in a crowded place
And I don't know what to do
'Cause I'll never be with you
La la la la la la la la la
A Carnifex, A Carnifex
A Carnifex, it's true
There must be an Tyranid with ichor on it's face
When it thought up that I should be with you
But it's time to face the truth
I will never be with you